This workaround works for me: sudo apt install qt5-style-plugins echo "export QT_QPA_PLATFORMTHEME=gtk2" >> ~/.profile
Not fixing this bug in Ubuntu means that all QT5 Applications will looks 80s. https://bugs.launchpad.net/mixxx/+bug/1789113 Effected Apps are qBittorrent VLC Virtualbox Mixxx ... In the Mixxx project, we like to offer our user the best experience and polished view. Hacking magic commands to the terminal should not be a part of that. I think we can also not add that to our install scripts because of the different ubuntu flavours. Do you have any ideas what can be the solution to fix this regression? -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1695618 Title: Include qt5-style-plugins into the default installation, otherwise Qt5 apps don’t pick up the GTK+ style Status in qtbase-opensource-src package in Ubuntu: Won't Fix Bug description: In Artful and Bionic, Qt5 applications look alien because they don’t follow the GTK+ style. For Qt5 applications to pick up the GTK+ style, qt5-style-plugins must be included into the default installation and “export QT_QPA_PLATFORMTHEME=gtk2” must be provided. Original bug description: Since I upgraded to Qt 5.7.1, Qt5 apps stopped picking up the Ubuntu (GTK+, I presume) theme, and look very Windowsy. I have qt5-gtk-platformtheme installed, and I tried forcing it by setting QT_QPA_PLATFORMTHEME, but to no avail. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/qtbase-opensource-src/+bug/1695618/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
